Cash register



A. R. CLLEY CASH REGISTER June 3, 1930.

Filed June 4, 1924 FIG. 1

Arthur R. Colley Hi! gtk-z umidi I Patented .lune 3,

tratase ARTHUR R. CGLLEY, OF DAYTN, OTll'O, ASSISI-NOR, BY LFSNE ASSIGNMENTS, TO THE NATEONAI, CASH MARYLAND CASH REGISTER Application filed June 4,

This invention relates to cash registers, and more particularly to the totalizer mechanism thereof.

The principal object of this invention is to provide an adding and subtracting totalizer for use with cash registers which reduces to a minimum the amount of shift necessary between adding and subtracting positions. 0 With this and incidental objects in view, the invention comprises certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and a preferred `form or embodiment of which is hereinafter described with reference to the drawings which accompany and form part of this specification.

Of said drawings:

Fig. 1 is a front elevation of a totalizer line with the adding and subtracting wheels mounted thereon, together with the cam for shifting the totalizer and the actuating racks for operating the totalizer wheels.

Fig. 2 is a side elevation of one of the adding and subtracting units, partly brclren away to shovT one of the beveled gears and pinions which cooperate therewith.

Fig. 3 is a detail sectional view through one of the pairs of adding and subtracting totalizer wheels showing the construction thereof.

Fig. i is a flat development of the cam previously used in machines of this type to shift the adding and subtracting totalizers from one to the other of their positions. n

Fig. 5 is a flat development of the cam used in the machine embodying the present invention for shifting the totalizer wheels from their adding to their subtracting `positions, or vice versa.

General description This invention is shown embodied in a machine of the type shown and described in Letters Patent of the United States of F. L. Fuller, No. 1,2a2,170, granted Oct. 9, 1917, and, therefore, only such of the mechanism as is considered necessary properly to show 1924. Serial No. 717347.

the operation of the invention, is included in this application.

In the Fuller patent there is shown an adding and subtracting totalizer. This totalizer comprises a plurality of units, each of which consists of two Ordinar f totalizer wheels having bevel gears fastened to their adjacent sides. There are two bevel pinions which mesh with both of the bevel gears so that the movement of one member of a pair of totalizer wheels will rotate the other wheel of the pair in the opposite direction. 7Vhen using a totalizer such as that just described, and as illustrated in the Fuller patcnt, it was necessary to shift the totalizer wheels some distance to move the subtracting wheels into cooperative relation with the actuating racks when changing from the adding to the subtracting positions.

This is due to the wide construction of said adding and subtracting totalizer, wherein the bevel connecting gears are located between the adding wheel and the subtracting wheel.

The adding and subtracting totalizer is shifted axially relatively to the actuators. to bring either the adding or the subtracting set of gears in line with the actuators, by a peripheral or drum cam, shown in Figs. 18 and 19 of said Fuller patent. But, because of the location of the intermediate bevel gears between the adding and subtracting wheels 0f each denomination, it is necessary, in F ullers device, to shift the adding and subtracting totalizer a greater distance axially in changing from the adding to the subtracting wheels or vice versa, than it is to shift from one to another set of adding totalizers of the ordinary interspersed type.

Therefore, in order to reduce the load on r keys, in the control bank.

But as the arcuate distance 'through which the drum cani may be rocked is limited and defined by the number of control keys in a row on the keyboard, tie increase in the length of the cani to efl'ect the shift of the totaliser from he adding to sin tractinp' wheels of each denomination, and vice versa. forces the elimination of intermediate the ends of the roxv of c keys, (indicated in dotted lines in Il). as it uf'ould be of no avail at pres .nt arrest the adding and subtracting totaliteiin a position ivith its Wheels intermediate the actuators.

The position of the totalizer is controllhd from a bank of control keys, certain keys of the bank positioning the totalizer for adding, and other keys causing it to shift to its subtracting position, is Well known in machines of this type. These keys control Well known differential mecl'ianism (not shown herein), which in turn positions the cams, such shown in Fig. 4t, in accordance with the key depressed. Due to the distance through which it is necessary to move the totali-.ner Wheels to shift from the adding to the subtracting position, or vice versa. 'it has never been practical to use more than seven credit and debit, or add and subtract lf all nine keys were used as credit and debit keys, the cam groove would have to be so abrupt that the totalizer line Would receive a very rapid. shifting movement, and, due to the friction created by such an abrupt cam, it would make the operation diiiicult at that point in the operation of the machine.

In the present invention, however, the distance vhich the totalizer line must shift, in order to change from the adding to the sub* tracting position, has been greatly reduced, and this reduction in the movement of the totalizer line has permitted the design. of a cam such as is shown in Fig. 5, the form of Which is such that no keys in the control bank need be omitted.

Adding (1m/Z subtracting totalitario @ofi/Pels Each totalizer unit comprises an adding Wheel and a subtracting Wheel 3l (Figs. l. and 3) adapted to be engaged "with actuators 29. rEhe adding Woeel 30 is loosely mounted on a rod supported by arms 33 and slid-.able along a shaft 35 carried by guide plates mounted. on the side frames (Fig. l). There are as many pairs of adding and subtracting totalizer Wheels in the machine as it is desired te have denomina tions. Each unit or pair of totaiizer Wheels is constructed as follows: The adding Wheel 30 is connected by means of a hub 37 to a bevel gear 38. Integral With the hub of the subtracting wheel 3l, which is loosely mounted on 'the hub 37 closely adjacent the adding Wheel 30, 1s a bevel gear 39. Secured to the rod 32 is a hub having a pair of arms l0 embracing the bevel gear 38 and extending parallel with the rod 32. Each arm 40 carries headed stud el positioned radially relatively to the rod 32, which studs each support a bevel pinion il2 meshing with both the adding and subtracting bevel gears 33 and 39. It can be seen from the above that when either of the adding or subtracting totalizer Wheels 30 or 31 is driven, the other wheel of the pair Will be rotated in the opposite direction through the bevel gears 33 and 39 and the bevel pinions 4.2. Each of the adding and subtracting totaliZer Wheels 30 and 3l has a long tooth 43, the function of which is very Well known, and which is described in the above mentioned Fuller patent. lVhen it is desired to subtract, the subtracting Wheels 31 are engaged with the actuators 29, and are rotated forwardly or clockwise (Fig. 2) thus causing the adding Wheels 30 to be rotated backwardly or counter-clockwise to the same extent, thereby subtracting the desired amount from that standing on the adding Wheels.

Shift/n g mechmiz'sm As above mentioned, all the adding and subtracting totalizer Wheels 30 and 3l. are loosely mounted on the rod This rod is supported at its right hand end in the arm 33, and at its left hand end in. the arm 341, both of said arms being axially slidable on the shaft which is itself supported for bodily movement laterally in the guide plates 36 secured to the side frames of the machine. rlhe arm 34. has a boss #lr-8. in

Which is mounted a rod 4119 carrying flanged. rollers the lmver one of whichoperates in a cam slot 5l (Figs. 'l and 5) formed in a segmental drum cam provided with a hub rotatably mountedA on a sind 54 sup ported by the left hand side frame. llpon operation of the inachnie, the cam 5l is differentially positioned under the control oit the keys in the control bank appropriate to the particular totalizer line to be operated, as set forth in the above-mentioned patent to Fuller, No. X21? .70. rlhe rouformation of the cani is such that the arms 33 and and the rod 32 carrying the totalizer Wheels, WillV be shifted laterally of the machine, that is towards the right from the position shown in Fig. l; when a credit key has been depressed and the n chine operated, and back again when a debit key is depressed. The parts are guided in such axial shifting by a bracket projecting from the side frame of the machine and. having a slot 55 formed therein in which the upper roller 5() operates.

evident, therefore, that if a debit key is depressed, 'the cam 52 will position the subtracting totalizer wheels 31 in alinement with the actuators 29, and ifa credit lrey is depressed, the cam will shift the adding wheels 30 into alinement with the aetuators 29. It can be seen from F ig. l that the totalizer wheels, shown in that ligure, are positioned with the subtracting wheels 3l in alinement with the actuators, and it will be noted that only a very short movement is necessary to bring the adding wheels 3() into alinement with said actuators and move the subtracting wheels out of such an alinement. As above mentioned, it is this short movement that permits the use of such a cam as that shown in Fig. 5 which enables any arrangement ot a full complement of nine debit and credit keys.

After the totalizer wheels have been positioned, with either the adding or subtracting wheels in alinement with the actuators 29, the totalizer wheels, rod 32, arms 33 and 34 and shaft 35 are moved bodily to bring the selected totalizer wheels into cooperative relation with the actuators. The means for effecting this enga-gement is very well known, and is described in detail in the above mentioned Fuller patent, and therefore no showing or description thereof is included herein.

lVhile the form of mechanism herein shown and described is admirably adapted to fulll the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms, all coming within the scope of the claims which follow.

That is claimed is:

l. In a machine of the class described, the combination of a pair of wheels of corresponding denomination, the members of which pair ot wheels lie closely adjacent cach other; a supporting rod tor the pair ot wheels and relatively to which the Wheels rotate; a driving connection between the wheels, including a sleeve attached to one of the wheels and projecting through the other of the wheels; a gear on the sleeve; a gear on the wheel through which the sleeve projects; a beveled. pinion in mesh with the gears; and means secured to the supporting rod on one side of the pair oil.z wheels, to support the pinion.

2. In a machine ot the class described, the combination of a pair of wheels ot correspending denomination, the members of which pair ol2 wheels lie closely adjacent each other; a supporting rod for the pair of wheels and relatively to which the wheels rotate; a driving connection between the wheels, including a sleeve attached to one of the wheels and projecting through the other of the wheels; a gear on the sleeve; a gear on the wheel through which the sleeve projects; beveled pinions in mesh with the gears; and a yoke-shaped member fast on the rod to one side of the pair of wheels, and embracing the gears, for supporting the pinions.

3. In a machine of the class described, the combination with a supporting rod; of an adding wheel and a subtracting wheel, one of said wheels being journaled on the supporting rod and arranged closely adjacent the remaining wheel; and a driving connection between the wheels, including a sleeve journaled on the rod; the sleeve attached to that wheel which is journaled on the rod and projecting axially through said remaining wheel to form a bearing therefor; a gear on the sleeve; a companion gear on said remaining wheel; and a beveled pinion meshing with the gears, so that either wheel may be differentially driven by the other wheel.

4. In a machine of the class described, the combination with a supporting rod; of an adding wheel and a subtracting wheel arranged closely adjacent each other on, and diilerentially rotatable in either direction relatively to the rod; and a driving connection between the wheels, whereby either of the wheels may be driven by the other, and including a sleeve journaled on the rod, the sleeve attached to one of the wheels and projecting through the remaining wheel.

5. In a machine of the class described, the combination with a support; of an adding and a subtracting wheel arranged in substantial abutting relation and dilierentially rotatable relatively to the support; a sleeve secured to one of the wheels and extending axially through the remaining wheel which is journaled thereon; a gear on the outer face of the said remaining wheel; an opposed gear on the outer end of the sleeve; pinions connecting the opposed gears; and means to drive the gears.

6. In a machine of the class described, the combination with a support; of an adding and a subtracting wheel arranged in substantial abutting relation and differentially rotatable relatively to the support; a sleeve secured to one of the wheels and extending axially through the remaining wheel which is journaled thereon; a gear on the outer face of the said remaining wheel; an opposed gear on the outer end of the sleeve; a carrier fast on the support and embracing the gear on the sleeve; pinions mounted in the carrier and connecting the opposed gears; and means to drive the gears.

In testimony whereof I aihx my signature. ARTHUR R.

COLLEY.

CJD 

